Can anyone tell me minimum time and safe time to allocate if connecting to a British Airways Heathrow flight on a Sunday at 6:50 pm in Toronto Terminal 3 when flying in on American Eagle from Ohare (it seems all in Terminal 3). Right now my connection is 110 minutes but I was getting conflicting information from the airlines about whether this is enough (BA suggested 3 hours, but AA said the 110 minutes is a valid connection after investigating).

The flight is on business class and AA platinum/Saphire status if that helps in Toronto.

From the wayfinder website it seems I have to go through border control, collect bags, customs, recheck bags, go through security.

Will be flying with kids so less risk tolerant than if traveling alone.

Thanks